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Well Its Ok For You To Think Van Flandern Is A Genius...

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Posted by Bruce on November 5, 2002 20:39:54 UTC

This making sense to you and Van Flandern is perfectly ok. If you think that Einstein's model of gravity can't answer Van Flandern's questions then you are mistaken. The questions are specious for somebody who claims to understand GR. Gr doesn't reduce to Newtonian gravity in the weak field in the way he suggests. He is suggesting that Newtonian gravity is isomorphic with GR in the weak field. Newtonian gravity is ONLY an APPROXIMATION for GR in the weak field. If the weak field can be our solar system then the approximation becomes increasingly useless as r (from the center of mass of the solar system) decreases. You research Van Flandern's question about how the gravity escapes from the black hole wrt GR. Van Flandern has been questioning GR with the speed of gravity argument for ~ 10 years. He had a chance to make a prediction for the result to the Kopeikin experiment (we should know these results soon) but he 'chickened out' in the end. Go over to sci.physics and do a google searh for Tom Van Flandern and you can review all the discussions he has had with some relativity experts over the years. Stephen Speicher started the thread wrt Van Flandern's prediction for Segei Kopeikin's recent experiment to measure the speed gravity propagates. Van Flandern also claims that no relativistic adjustment for GPS clocks is required for the system to work.
GR can easily show why the adjustment is necessary.
A easy way to do it.
You might start your research (if you are interested) on the last Van Flandern question here. Essentially the answer is gravity doesn't come from inside the black hole (the grav field extends from far away to r = 0.)

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